[gmx-users] overheating problem

ahmet yıldırım ahmedo047 at gmail.com
Fri Feb 3 22:24:05 CET 2012

Dear users,

I am using ubuntu 11.1 (64 bit). The Ubuntu normally runs when I dont run
the Gromacs program. i.e there is not heating problem. But the CPU is
excessive heating (82 degree) when I run the gromacs.
I am using the all cores at 100%. Now I have 2 PC. I use them separately
1.first: It has Intel i7 920 CPU and Asus P6T SE motherboard
2.second: It has Intel I7 960 and Gıgabyte x58A-UD5 LGA 1366 motherboard
I have the problem of warming/overheating on both computers. I could not
figure out this problem for two weeks :(
By the way:
-I dont use an older compiler to get the binary. I am using gcc 4.6 and I
am using Gromacs 4.5.4
-I watch the temperatures by "lm sensor" program
-I installed ubuntu 32-bit but the result didnt change again
-I have sufficient cooling on both PC
It is likely something related to the program because no problem with any
hardware related to computers according to experts say.

what do you suggest? :(

Adapter: ACPI interface
Vcore Voltage:       +1.22 V  (min =  +0.80 V, max =  +1.60 V)
 +3.3 Voltage:       +3.31 V  (min =  +2.97 V, max =  +3.63 V)
 +5 Voltage:         +5.00 V  (min =  +4.50 V, max =  +5.50 V)
 +12 Voltage:       +12.03 V  (min = +10.20 V, max = +13.80 V)
CPU FAN Speed:      2163 RPM  (min =  600 RPM)
CHASSIS1 FAN Speed:    0 RPM  (min =  600 RPM)
CHASSIS2 FAN Speed: 2033 RPM  (min =  600 RPM)
POWER FAN Speed:       0 RPM  (min =    0 RPM)
CPU Temperature:     +82.0°C  (high = +60.0°C, crit = +75.0°C)
MB Temperature:      +45.0°C  (high = +45.0°C, crit = +75.0°C)

Adapter: PCI adapter
temp1:        +60.5°C *

Ahmet Yıldırım
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